Bleeptech

pauluzs commented... "Been running it as a mesa 7i90 card with hostmot2 firmware over spi to linuxcnc on a raspberry pi 4 for several months without any problems." Do tell!...

It looks like the easiest solution might be adding a CH55x chip to handle the USB host functions.. bitluni stuffed one in his ESP32 powered micro game console.. https://www.youtube.com/watch?v=po3FBdY0GS4

Been there.. Done that.. [Good thing I was already nuts before I started..] ESP32 KE32-WROVER-C10 + GY521 with USB HID over Blueooth.. Enumerates as a joystick..  [Dont ask me...

Looks like a nice bulletproof case build. ;D I'm going for fireproof myself and recycling old fire alarm panel boxes for mine. LOL   They're about the same gauge...